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A ray of light is incident normally on o...

A ray of light is incident normally on one refracting surface of an equilateral prism . If the refrctive index of a material of the prism is 1.5., then

A

the emergent ray is deviated by `30^(@)`

B

the emergent ray is deviated by `60^(@)`

C

the emergent ray just graces the second reflecting surface

D

The ray undergoes total internal reflection at second refracting surface

Text Solution

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The correct Answer is:
D
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